Home / 13,814.98-20,707.79-9,421.54

Finding the Fourth Proportional to 13,814.98, 20,707.79 and 9,421.54

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Solution

The fourth proportional to 13,814.98, 20,707.79 and 9,421.54 is: 14,122.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,814.98 : 20,707.79 = 9,421.54 : x
  2. Step 2: Convert to fraction form
    13,814.98/20,707.79 = 9,421.54/x
  3. Step 3: Cross multiply
    13,814.98x = 20,707.79 × 9,421.54
  4. Step 4: Simplify right side
    13,814.98x = 195,099,271.80
  5. Step 5: Solve for x
    x = 195,099,271.80/13,814.98
  6. Step 6: Final answer
    x = 14,122.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.